Western Australia is the largest State in Australia. Its size is matched only by the diversity of its traditional owners.

According to the last census, WA is home to nearly 20,000 Indigenous Catholics. The highest percentage of Catholics is in Broome where Aboriginal and Torres Strait Islanders make up 61% of all Catholics. Geraldton comes in second where 13% of Catholics are Aboriginal or Torres Strait Islander.

Remote communities throughout WA practice their traditional languages and incorporate their own cultural symbols and rituals into the Mass.

In Perth, the ACM is located on Baker St. It is a Perth institution and visits 100's of people that are in prison or in hospital. The Mass in the Park has proven to be extremely popular and always sees a large congregation.